fix(custom-command-menu): add menu icon settings to dconf distro database

The extension uses its own bundled schema dir via getSettings(), so
gschema overrides have no effect. Move the menu display settings
(icon, location, arrow) into the dconf distro database where the
extension actually reads them.

Author: dylanmtaylor

system_files/bluefin/etc/dconf/db/distro.d/04-bluefin-custom-command-menu

@@ -2,6 +2,10 @@
 # https://github.com/StorageB/custom-command-menu
 
 [org/gnome/shell/extensions/custom-command-list]
+menuoptions-setting=2
+menuicon-setting='ublue-logo-symbolic'
+menulocation-setting=0
+show-arrow=false
 command-order=[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
 
 entryrow1a-setting='---$(hostname)'